- Knapp, Philip Coombs, 1858-1920 author1
- Knight, Charles H. (Charles Huntoon), 1849-1913 author1
- Koplik, Henry, 1858-19273
- Lewi, Emily, author1
- Lovett, Robert W. (Robert Williamson), 1859-19241
- Lovett, Robert W. (Robert Williamson), 1859-1924, author2
- Mackenzie, John N., author1
- Meyer, Willy, 1858-1932, author2
- Mills, Charles K. (Charles Karsner), 1845-1931, author1
- Moncorvo, Arthur.1
- Monks, George H. (George Howard), 1853-19331
- Morrison, William Alexander, M.D., author1
- Morse, John Lovett, 1865-1940, author1
- Newmark, Leo, 1861-1943, author1
- Northrup, William Perry, author1
- O'Dwyer, Joseph P., 1869-19061
- O'Dwyer, Joseph P., 1869-1906, author1
- Oliver, Charles A. (Charles Augustus), 1853-19111
- Osler, William, Sir, 1849-19191
- Packard, John H. (John Hooker), 1832-1907, author1